如何在Qt中获取滚动条的实际宽度? [英] How to get scroll bar real width in Qt?

问题描述

我正在尝试制作一个自定义小部件，该小部件基本上是一堆textedit，右侧有一个垂直滚动条.为了确定小部件的大小，我必须找到滚动条的宽度，因为texedits的几何形状取决于它.只需调用scroll_bar-> width();对于新创建的垂直条返回101，这显然是错误的.

I'm trying to make a custom widget, which is basically a bunch of textedits with a single vertical scroll bar on the right. To keep widget size determined, I have to find a width of the scrollbar, as texedits geometry depends on it. Simply calling scroll_bar->width(); for freshly created vertical bar returns 101, which is obviuosly wrong.

那么，有没有办法在Qt 3.2.3中正确确定垂直滚动条的宽度?

So, is there a way to determine vertical scroll bar width correctly in Qt 3.2.3?

推荐答案

int w = qApp->style()->pixelMetric(QStyle::PM_ScrollBarExtent);

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